Two fathers' lives intersect when one of them is involved in a terrible and sudden hit-and-run car accident that leaves the other's son dead. In response, the two men react in unexpected ways as a reckoning looms in the near future.
| Actor | Role |
|---|---|
 Joaquin PhoenixEthan Learner | Ethan Learner |
 Jennifer ConnellyGrace Learner | Grace Learner |
 Elle FanningEmma Learner | Emma Learner |
 Sean CurleyJosh Learner | Josh Learner |
 Mark RuffaloDwight Arno | Dwight Arno |
 Mira SorvinoRuth Wheldon | Ruth Wheldon |
 Gary KohnNorris Wheldon | Norris Wheldon |
 Eddie AldersonLucas Arno | Lucas Arno |
 Antoni CoroneSergeant Burke | Sergeant Burke |
 John SlatterySteve | Steve |
| CCordell ClydeJimmy McBride | Jimmy McBride |
| NNora FerrariNora | Nora |
 Linda DanoGroßmutter | Großmutter |
 Jason HarrisPodcast (voice) | Podcast (voice) |
 Bill CampDesk Trooper | Desk Trooper |
 Michael AnzaloneDwight's Neighbor | Dwight's Neighbor |
 John RothmanMinister | Minister |
 Geisha OteroGeisha Otero | Geisha Otero |
 Brett HaleyBrett | Brett |
 Sinead DalyAmerican Girl | American Girl |
 Armin AmiriRashid | Rashid |
 David AnzueloRaul | Raul |
 Raum AronGerry | Gerry |
 Johnathan TchaikovskyJock | Jock |
| KKevin HerbstDriving Trooper | Driving Trooper |